Railroad-rail chair



M. E. PERKINS.

RAILROAD RAIL CHAIR.

(Nb Model.)

No. 344,920. Pat ented July 1886.

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RAILROAD-RAIL CHAIR.

SPECIFICATION forming part of Letters Patent No. 344,920, dated July 6,1886.

Application filed February 19, 1886. Serial No. 192,516. (No model.)

To aZZ whom it may concern:

Be it known that I, Mroimnn B. PERKINS, a citizen of the United States,residing at Portsmouth, in the county of Rockingham and State of NewHampshire, have invented certain new and useful Improvements in Railroad-Rail Chairs; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in railroad-rail chairs, and ismore particularly an improvement upon Patent No. 236,354, granted to meJanuary 4, 1881. In the chair described in said patent a block or plateof wood or other suitable material is interposed between a metal plateand the tie, the metal plate bearing upon the entire upper surface ofthe wooden plate. Aftera practical test of this chair I find that thecompression of the wooden plate is greater directly under the rail thanit is on the parts of said plate which proj ect beyond the bottom of therail, and unless very heavy metal is used the tendency of the upperplate is to turn up at its ends.

The object of my present invention is to prevent the ends of the metalplate from so turning up. This I accomplish by scarfing or beveling theupper surface of the portions of the interposed wooden plate whichproject beyond the bottom of the rail.

This improvement I will now more particularly point out and describe,reference being had to the accompanying drawings, in which- Figure 1 isa perspective showing my invention in use, and Fig. 2 a perspective ofthe two parts forming my invention.

Referring to said drawings, A represents a metal plate provided withopenings for spikes, and having downwardly projecting side flanges, B B,of any required length.

0 represents a block or plate of wood or other suitable material, madeto fit snugly between the flanges B B and extend below said flanges asuitable distance. This plate (I is provided with openings correspondingto those in the metal plate A to receive the spikes.

In using the chair the plate 0 is placed upon a tie, as shown in Fig. 1,the length of the plate being parallel to the length of the tie.

The plate A fits over the plate 0, and the rail rests on the plate Abetween the spike-holes. Spikes are then driven through the openings inboth plates, and hold both the'rail and chair on the tie. It will beseen that the ends of both plates project on either side beyond thebottom of the rail.

So far as described the chair is substantially the same as that coveredby Patent No. 234,856.

My improvement consists in scarfing or beveling the upper surface of theends of the plate 0 at c 0, being the parts of the upper surface of saidplates which project beyond the bottom of the rail, the depth of thebevel or scarf varying with the different kinds of material used. Thusthe ends of a hard-wood plate are beveled less than a soft-wood plate,as the compression of the center of the plate is not so great when madeof hard wood as when made of soft wood, my object being to scarf orbevel the ends of the plate I? to such a depth that when the center ofsaid plate has been compressed to its full extent the ends of the plateA will rest on the beveled or scarfed ends of said plate 0, and will notbe turned up.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A chair for railroad-rails, consisting of ametal plate covering and partially inclosing a plate of wood or othersuitable material, hav ing the upper surface of its ends scari'ed orbeveled and intervening between the metal plate and the cross-tie,substantially as shown and described.

2. A chair for railroad-rails, consisting of a metal plate provided witha wooden plate intervening between the metal plate and crosstie, andhaving the upper surface of its ends scarfed or beveled, substantiallyas shown and described.

3. The combination of the plate A, having flanges B B, plate 0, havingscarfed or beveled ends 0 c, and the spikes and crosstie, substantiallyas shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

MICHAEL It. PERKINS.

Witnesses:

SAMUEL WV. EMERY,

HORACE B. RAND.

It is hereby certified that in Letters Patent No. 344,920, granted July6, 1886, upon the application of Michael R. Perkins, of Portsmouth, NewHampshire, for an improvement in RailroadRail Chairs, an error" appearsin the printed specification requiring the following correction, viz: Inline 63, page 1, the number of the patent referred to therein shouldread 236,354 instead Of234:,356 5 and that the Letters Patent should beread with this correction therein to make it conform to the record ofthe case in the Patent Office.

Signed, countersigned, and sealed this 27th day of July, A. D. 1886.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior, Oountersigned M. V. MONTGOMERY,

COHMWiSSiOTtGT of Patents.

